2-(4-SULFO-1-NAPHTHYLAZO)-1-NAPHTHOL-4-SULFONIC ACID
UNII 83344C2N7U

Substance Identification & Data

This profile provides standardized clinical and technical data for 2-(4-sulfo-1-naphthylazo)-1-naphthol-4-sulfonic Acid, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 83344C2N7U.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 13613-55-3 and the RxNorm Concept ID (RxCUI) N/A. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
83344C2N7U
CAS Registry Number
13613-55-3
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
2-(4-SULFO-1-NAPHTHYLAZO)-1-NAPHTHOL-4-SULFONIC ACID
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C20H14N2O7S2
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
TVWOWDDBXAFQDG-QURGRASLSA-N
Line notation for describing the chemical structure and connectivity of atoms.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
c1cc(c2c(c1/N=N/c3cc(c4c(c3O)cccc4)S(O)(=O)=O)cccc2)S(O)(=O)=O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for 2-(4-sulfo-1-naphthylazo)-1-naphthol-4-sulfonic Acid. Identifiers are organized into official regulatory terms, commercial trade names, and technical systematic synonyms used to ensure accurate identification across clinical pharmaceutical databases, regulatory filings, and electronic health records.

Common Names & Synonyms

1-NAPHTHALENESULFONIC ACID, 4-HYDROXY-3-((4-SULFO-1-NAPHTHALENYL)AZO)-
1-NAPHTHALENESULFONIC ACID, 4-HYDROXY-3-(2-(4-SULFO-1-NAPHTHALENYL)DIAZENYL)-
1-NAPHTHOL-4-SULFONIC ACID, 2-(4-SULFO-1-NAPHTHYLAZO)-
C.I. ACID RED 14 (FREE ACID)
C.I. ACID RED 14 FREE ACID
C.I. ACID RED 14, FREE ACID

Systematic Nomenclature

2-(4-SULFO-1-NAPHTHYLAZO)-1-NAPHTHOL-4-SULFONIC ACID